<template>
  <div class="login">
    <div class="login-center">
      <div class="login-center login-left">
        <img src="@/assets/images/left-bg4.png" alt="" class="title"/>
      </div>
      <div class="login-center login-right">
        <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
          <div class="login-logo">
            <img src="@/assets/images/logo.png" alt=""/>
            <span>{{title}}</span>
          </div>
          <el-form-item prop="username">
            <el-input
              v-model="loginForm.username"
              type="text"
              auto-complete="off"
              placeholder="账号"
            >
              <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon" />
            </el-input>
          </el-form-item>
          <el-form-item prop="password">
            <el-input
              v-model="loginForm.password"
              type="password"
              auto-complete="off"
              placeholder="密码"
              @keyup.enter.native="handleLogin"
            >
              <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon" />
            </el-input>
          </el-form-item>
          <el-form-item prop="code" v-if="captchaEnabled">
            <el-input
              v-model="loginForm.code"
              auto-complete="off"
              placeholder="验证码"
              style="width: 63%"
              @keyup.enter.native="handleLogin"
            >
              <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon" />
            </el-input>
            <div class="login-code">
              <img :src="codeUrl" @click="getCode" class="login-code-img"/>
            </div>
          </el-form-item>
          <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码</el-checkbox>
          <el-form-item style="width:100%;">
            <el-button
              :loading="loading"
              size="medium"
              type="primary"
              style="width:100%;background-color: #19527d;border-color: #19527d;opacity:0.9;"
              @click.native.prevent="handleLogin"
            >
              <span v-if="!loading">登 录</span>
              <span v-else>登 录 中...</span>
            </el-button>
            <div style="float: right;" v-if="register">
              <router-link class="link-type" :to="'/register'">立即注册</router-link>
            </div>
          </el-form-item>
        </el-form>
      </div>
    </div>

    <!--  底部  -->
    <div class="el-login-footer">
      <span>Copyright © 2024-2025 顺悦鑫网络科技.</span>
    </div>
  </div>

</template>

<script>
  import { getCodeImg } from "@/api/login"
  import Cookies from "js-cookie"
  import { encrypt, decrypt } from '@/utils/jsencrypt'

  export default {
    name: "Login",
    data() {
      return {
        title: process.env.VUE_APP_TITLE,
        codeUrl: "",
        loginForm: {
          username: "",
          password: "",
          rememberMe: false,
          code: "",
          uuid: ""
        },
        loginRules: {
          username: [
            { required: true, trigger: "blur", message: "请输入您的账号" }
          ],
          password: [
            { required: true, trigger: "blur", message: "请输入您的密码" }
          ],
          code: [{ required: true, trigger: "change", message: "请输入验证码" }]
        },
        loading: false,
        // 验证码开关
        captchaEnabled: true,
        // 注册开关
        register: false,
        redirect: undefined
      }
    },
    watch: {
      $route: {
        handler: function(route) {
          this.redirect = route.query && route.query.redirect
        },
        immediate: true
      }
    },
    created() {
      this.getCode()
      this.getCookie()
    },
    methods: {
      getCode() {
        getCodeImg().then(res => {
          this.captchaEnabled = res.captchaEnabled === undefined ? true : res.captchaEnabled
          if (this.captchaEnabled) {
            this.codeUrl = "data:image/gif;base64," + res.img
            this.loginForm.uuid = res.uuid
          }
        })
      },
      getCookie() {
        const username = Cookies.get("username")
        const password = Cookies.get("password")
        const rememberMe = Cookies.get('rememberMe')
        this.loginForm = {
          username: username === undefined ? this.loginForm.username : username,
          password: password === undefined ? this.loginForm.password : decrypt(password),
          rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
        }
      },
      handleLogin() {
        this.$refs.loginForm.validate(valid => {
          if (valid) {
            this.loading = true
            if (this.loginForm.rememberMe) {
              Cookies.set("username", this.loginForm.username, { expires: 30 })
              Cookies.set("password", encrypt(this.loginForm.password), { expires: 30 })
              Cookies.set('rememberMe', this.loginForm.rememberMe, { expires: 30 })
            } else {
              Cookies.remove("username")
              Cookies.remove("password")
              Cookies.remove('rememberMe')
            }
            this.$store.dispatch("Login", this.loginForm).then(() => {
              this.$router.push({ path: this.redirect || "/" }).catch(()=>{})
            }).catch(() => {
              this.loading = false
              if (this.captchaEnabled) {
                this.getCode()
              }
            })
          }
        })
      }
    }
  }
</script>

<style rel="stylesheet/scss" lang="scss">
  .login {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    background-image: url("../assets/images/login-background.png");
    background-size: cover;
  }
  .login-center{
    opacity: 0.9;
    top:200px;
    .login-left{
      border-radius: 2px;
      float: left;
      img{
        width: 400px;
        height: 480px;
      }
    }
    .login-right{
      float:right;
    }
  }

  .login-form {
    border-radius: 6px;
    background: #ffffff;
    width: 450px;
    height: 480px;
    padding: 25px 25px 5px 25px;
    z-index: 1;
    .el-input {
      height: 38px;
      input {
        height: 38px;
      }
    }
    .input-icon {
      height: 39px;
      width: 14px;
      margin-left: 2px;
    }
    .login-logo{
      width: 100%;
      margin: 0px auto 30px auto;
      display: inline-block!important;
      text-align: center;
      padding-top:30px;
      font-size: 26px;
      color: #707070;
      img{
        vertical-align: middle;
        width: 45px;
        height: 45px;
      }
      span{
        padding-left: 10px;
        text-align: center;
      }
    }
  }
  .login-tip {
    font-size: 13px;
    text-align: center;
    color: #bfbfbf;
  }
  .login-code {
    width: 33%;
    height: 38px;
    float: right;
    img {
      cursor: pointer;
      vertical-align: middle;
    }
  }
  .el-login-footer {
    height: 40px;
    line-height: 40px;
    position: fixed;
    bottom: 0;
    width: 100%;
    text-align: center;
    color: #fff;
    font-family: Arial;
    font-size: 12px;
    letter-spacing: 1px;
  }
  .login-code-img {
    height: 38px;
  }
</style>
